It's a multifunctional sofa bed,just put the backrest of the sofa down and pull out the front part,it can be turned into a bed.:All parts and tools are hidden in the bottom of the sofa bed. Just take it out of box and install the legs and casters, you will have a multifunctional sofa bed in minutes.:With high quality foam and spring support,plus soft and smooth velvet ,the sofa is comfortable,not too soft or too hard which is perfect to sit as well as to sleep on it.